3 way with a dimmer

I want to wire a new 3-way circuit with a dimmer. I have done 3-way circuits before and know there are different approaches depending on where the switches are vs the fixture. Can I simply swap out the standard 3 way switch with a 3 way dimmer is any of the layouts? Are there any restrictions?

Depending on how far apart the switches are, it can be a real convenience to be able to dim from either end...it's up to you whether it is worth the price. Some of them are great if you need more than just two, as you can daisy chain up to 8 switches, each can turn on and off plus dim. The wiring is easier, too, but different. The hot and neutral are chained, and the third wire is the dimmer interconnect. Imagine trying to get 8 switches all working to control the lights without that technology...messy. A good electronic dimmer also saves bulbs since they perform a soft start which doesn't shock the filaments as much.

The master/slave units I have seen needed power at both ends and one traveler between them. It's not complicated rewiring but it is rewiring.....(edit) if it's a retro install. If you've prewired for it, no problem.

The metal yoke contacting with the metal box would transfer at least some heat to the metal...in a plastic box, there's not as much conduction. Effectively, I think it would make the heat sink a little bigger. Probably not enough to worry about.

The master/slave units I have seen needed power at both ends and one traveler between them. It's not complicated rewiring but it is rewiring.....(edit) if it's a retro install. If you've prewired for it, no problem.

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Really? The ones I've seen basically replaced the old 3-ways; I've only had it done 3 times, but my electrician didn't rewire anything.

I just did a little google hunt, found the installation instructions for lutron's multi-location dimmers. Look at the diagram for 3-way dim-from-either-location. Looks like a standard 3-way setup, to me...

...upload's not working, for some reason. I think the file's too big. Here's a link to the download page: